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Ionis Pharmaceuticals (IONS) Stock Price, News & Analysis

Ionis Pharmaceuticals logo
$46.34 +1.50 (+3.35%)
As of 10:34 AM Eastern
This is a fair market value price provided by Massive. Learn more.

About Ionis Pharmaceuticals Stock (NASDAQ:IONS)

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Key Stats

Today's Range
$45.75
$47.42
50-Day Range
$44.84
$64.27
52-Week Range
$44.66
$86.74
Volume
545,662 shs
Average Volume
2.53 million shs
Market Capitalization
$7.70 billion
P/E Ratio
N/A
Dividend Yield
N/A
Price Target
$90.80
Consensus Rating
Moderate Buy

Company Overview

Ionis Pharmaceuticals, Inc. is a biotechnology company that discovers and develops medicines using antisense technology, which is designed to target RNA and influence the production of disease-related proteins. The company focuses on neurological, cardiovascular, metabolic and other serious diseases for which there remains a significant unmet medical need.

Ionis has developed several approved therapies, including SPINRAZA (nusinersen) for spinal muscular atrophy, QALSODY (tofersen) for a form of amyotrophic lateral sclerosis, TEGSEDI (inotersen) for hereditary transthyretin-mediated amyloidosis and WAYLIVRA (volanesorsen) for familial chylomicronemia syndrome in certain markets. Its pipeline also includes eplontersen, an antisense medicine developed with AstraZeneca for transthyretin amyloidosis.

Founded in 1989, Ionis is headquartered in Carlsbad, California. The company develops medicines independently and through collaborations with pharmaceutical partners, supporting commercialization and distribution across international markets. Ionis is led by Chief Executive Officer Brett P. Monia.

AI Generated. May Contain Errors.

Ionis Pharmaceuticals Stock Analysis - MarketRank™

See Top-Rated MarketRank™ Stocks
65th Percentile Overall Score

IONS MarketRank™: 

Ionis Pharmaceuticals scored higher than 65% of companies evaluated by MarketBeat, and ranked 351st out of 900 stocks in the healthcare sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation.

  • Consensus Rating

    Ionis Pharmaceuticals has received a consensus rating of Moderate Buy. The company's average rating score is 2.73, and is based on no strong buy ratings, 17 buy ratings, 4 hold ratings, and 1 sell rating.

  • Upside Potential

    Ionis Pharmaceuticals has a consensus price target of $90.80, representing about 95.0% upside from its current price of $46.55.

  • Amount of Analyst Coverage

    Ionis Pharmaceuticals has been the subject of 18 research reports in the past 90 days, demonstrating strong analyst interest in this stock.

  • Read more about Ionis Pharmaceuticals' stock forecast and price target.
  • Earnings Growth

    Earnings for Ionis Pharmaceuticals are expected to grow in the coming year, from ($3.57) to ($2.36) per share.

  • Price to Earnings Ratio vs. the Market

    The P/E ratio of Ionis Pharmaceuticals is -12.96, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.

  • Price to Earnings Ratio vs. Sector

    The P/E ratio of Ionis Pharmaceuticals is -12.96, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.

  • Price to Book Value per Share Ratio

    Ionis Pharmaceuticals has a P/B Ratio of 15.42. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities.

  • Read more about Ionis Pharmaceuticals' valuation and earnings.
  • Percentage of Shares Shorted

    12.82% of the float of Ionis Pharmaceuticals has been sold short.
  • Short Interest Ratio / Days to Cover

    Ionis Pharmaceuticals has a short interest ratio ("days to cover") of 9.18.
  • Change versus previous month

    Short interest in Ionis Pharmaceuticals has recently increased by 0.07%, indicating that investor sentiment is decreasing.
  • Dividend Yield

    Ionis Pharmaceuticals does not currently pay a dividend.

  • Dividend Growth

    Ionis Pharmaceuticals does not have a long track record of dividend growth.

  • News Sentiment

    Ionis Pharmaceuticals has a news sentiment score of 0.47. This score is calculated as an average of sentiment of articles about the company over the last seven days and ranges from 2 (good news) to -2 (bad news). This is a lower news sentiment than the 0.79 average news sentiment score of Healthcare companies.
  • News Coverage This Week

    MarketBeat has tracked 10 news articles for Ionis Pharmaceuticals this week, compared to 9 articles on an average week.
  • Search Interest

    Only 20 people have searched for IONS on MarketBeat in the last 30 days. This is a decrease of -23% compared to the previous 30 days.
  • MarketBeat Follows

    10 people have added Ionis Pharmaceuticals to their MarketBeat watchlist in the last 30 days. This is an increase of 100% compared to the previous 30 days.
  • Insider Buying vs. Insider Selling

    In the past three months, Ionis Pharmaceuticals insiders have sold 1,095.48% more of their company's stock than they have bought. Specifically, they have bought $1,058,700.00 in company stock and sold $12,656,566.00 in company stock.

  • Percentage Held by Insiders

    1.81% of the stock of Ionis Pharmaceuticals is held by insiders.

  • Percentage Held by Institutions

    93.86% of the stock of Ionis Pharmaceuticals is held by institutions. High institutional ownership can be a signal of strong market trust in this company.

  • Read more about Ionis Pharmaceuticals' insider trading history.
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IONS Stock News Headlines

Guggenheim Reaffirms Their Buy Rating on Ionis Pharmaceuticals (IONS)
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Equities Analysts Offer Predictions for IONS Q4 Earnings
See More Headlines

IONS Stock Analysis - Frequently Asked Questions

Ionis Pharmaceuticals' stock was trading at $79.11 at the beginning of 2026. Since then, IONS shares have decreased by 41.2% and is now trading at $46.5540.

Ionis Pharmaceuticals, Inc. (NASDAQ:IONS) posted its quarterly earnings data on Wednesday, April, 29th. The company reported ($0.56) earnings per share (EPS) for the quarter, beating the consensus estimate of ($0.85) by $0.29. The firm's quarterly revenue was up 86.4% on a year-over-year basis.
Read the conference call transcript
.

Ionis Pharmaceuticals' top institutional investors include Alyeska Investment Group L.P. (0.85%), Bank of America Corp DE (0.48%), Connor Clark & Lunn Investment Management Ltd. (0.41%) and TimesSquare Capital Management LLC (0.37%). Insiders that own company stock include Brett P Monia, Spencer R Berthelsen, Elizabeth L Hougen, Eugene Schneider, C Frank Bennett, Brian Birchler, Patrick R O'neil, Richard S Geary, B Lynne Parshall, Joseph H Wender, Onaiza Cadoret-Manier, Michael R Hayden, Kyle Jenne, Holly B Kordasiewicz, Eric Swayze, Joseph Baroldi, Shannon L Devers, Joseph Klein III and Allene M Diaz.
View institutional ownership trends
.

Shares of IONS stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services.

Based on aggregate information from My MarketBeat watchlists, some other companies that Ionis Pharmaceuticals investors own include NVIDIA (NVDA), Meta Platforms (META), Broadcom (AVGO), Advanced Micro Devices (AMD), Arista Networks (ANET), Adobe (ADBE) and CrowdStrike (CRWD).

Company Calendar

Last Earnings
4/29/2026
Today
9/17/2026
Next Earnings (Estimated)
11/04/2026
Fiscal Year End
12/31/2026

Industry, Sector and Symbol

Stock Exchange
NASDAQ
Industry
Biotechnology
Sub-Industry
Biotechnology
Current Symbol
NASDAQ:IONS
CIK
874015
Employees
1,402
Year Founded
1989

Price Target and Rating

High Price Target
$129.00
Low Price Target
$54.00
Potential Upside/Downside
+96.7%
Consensus Rating
Moderate Buy
Rating Score (0-4)
2.73
Research Coverage
22 Analysts

Profitability

EPS (Trailing Twelve Months)
($3.46)
Trailing P/E Ratio
N/A
Forward P/E Ratio
N/A
P/E Growth
N/A
Net Income
-$381.39 million
Net Margins
-64.76%
Pretax Margin
-64.30%
Return on Equity
-111.08%
Return on Assets
-17.41%

Debt

Debt-to-Equity Ratio
3.07
Current Ratio
7.89
Quick Ratio
7.73

Sales & Book Value

Annual Sales
$944 million
Price / Sales
8.13
Cash Flow
N/A
Price / Cash Flow
N/A
Book Value
$3.02 per share
Price / Book
15.29

Miscellaneous

Outstanding Shares
166,180,000
Free Float
163,176,000
Market Cap
$7.67 billion
Optionable
Optionable
Beta
0.42

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This page (NASDAQ:IONS) was last updated on 9/17/2026 by MarketBeat.com Staff.
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